/* roulang page: index */
:root {
  --paper: #F5F4EF;
  --paper-2: #ECEAE3;
  --surface: #FFFFFF;
  --ink: #161A18;
  --muted: #6C746F;
  --line: rgba(22, 26, 24, 0.12);
  --brand: #D7F171;
  --brand-strong: #BEE34A;
  --dark: #121916;
  --dark-text: #F5F4EF;
  --radius: 10px;
  --radius-lg: 18px;
  --radius-full: 999px;
  --shadow: 0 12px 30px rgba(0, 0, 0, 0.06);
  --shadow-lg: 0 24px 50px rgba(0, 0, 0, 0.1);
  --space-section: clamp(72px, 10vw, 140px);
  --container: 1200px;
  --font-cn: "PingFang SC", "Microsoft YaHei", "Noto Sans CJK SC", "Source Han Sans SC", "Helvetica Neue", Arial, sans-serif;
  --font-num: Inter, "IBM Plex Sans", -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
}
*, *::before, *::after { box-sizing: border-box; }
html, body { margin: 0; padding: 0; }
body {
  font-family: var(--font-cn);
  font-size: 16px;
  line-height: 1.75;
  color: var(--ink);
  background: var(--paper);
  -webkit-font-smoothing: antialiased;
}
img { max-width: 100%; height: auto; display: block; }
a { color: inherit; text-decoration: none; transition: color 0.18s ease, background 0.18s ease, border-color 0.18s ease, transform 0.18s ease; }
a:hover, a:focus { color: inherit; }
button, input, textarea, select { font-family: inherit; }
.grid-container { max-width: var(--container); }
.site-header {
  position: sticky;
  top: 0;
  z-index: 100;
  width: 100%;
  background: var(--paper);
  border-bottom: 1px solid var(--line);
}
.site-header.is-scrolled .header-nav {
  box-shadow: 0 6px 18px rgba(0, 0, 0, 0.04);
}
.header-top {
  background: var(--paper);
  border-bottom: 1px solid rgba(22, 26, 24, 0.06);
}
.header-top-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  min-height: 56px;
  gap: 16px;
}
.brand {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  flex-shrink: 0;
}
.brand-mark {
  width: 32px;
  height: 32px;
  border-radius: 50%;
  background: var(--brand);
  display: inline-flex;
  align-items: center;
  justify-content: center;
  color: var(--dark);
}
.brand-mark svg { width: 20px; height: 20px; fill: none; stroke: currentColor; stroke-width: 2.2; stroke-linecap: round; stroke-linejoin: round; }
.brand-text {
  font-weight: 700;
  font-size: 1.25rem;
  letter-spacing: -0.01em;
  color: var(--ink);
}
.header-actions {
  display: flex;
  align-items: center;
  gap: 14px;
}
.header-search {
  display: flex;
  align-items: center;
  gap: 8px;
  background: var(--surface);
  border: 1px solid var(--line);
  border-radius: var(--radius-full);
  padding: 0 6px 0 14px;
  height: 36px;
  width: 220px;
  transition: border-color .18s ease, box-shadow .18s ease;
}
.header-search:focus-within {
  border-color: var(--dark);
  box-shadow: 0 0 0 3px rgba(22, 26, 24, 0.06);
}
.header-search i { color: var(--muted); font-size: 0.85rem; }
.header-search input {
  border: 0;
  outline: none;
  background: transparent;
  width: 100%;
  font-size: 0.875rem;
  color: var(--ink);
  height: 32px;
  padding: 0;
}
.header-search input::placeholder { color: var(--muted); }
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  font-weight: 600;
  font-size: 0.9375rem;
  border-radius: var(--radius-full);
  padding: 12px 24px;
  border: 1px solid transparent;
  cursor: pointer;
  transition: background .18s ease, color .18s ease, border-color .18s ease, transform .15s ease, box-shadow .18s ease;
  white-space: nowrap;
}
.btn:active { transform: translateY(1px); }
.btn-sm { padding: 8px 18px; font-size: 0.875rem; }
.btn-primary {
  background: var(--brand);
  color: var(--ink);
  border-color: var(--brand);
}
.btn-primary:hover, .btn-primary:focus {
  background: var(--brand-strong);
  border-color: var(--brand-strong);
  transform: translateY(-2px);
  box-shadow: 0 8px 22px rgba(215, 241, 113, 0.3);
}
.btn-ghost {
  background: transparent;
  color: var(--ink);
  border-color: rgba(22, 26, 24, 0.3);
}
.btn-ghost:hover, .btn-ghost:focus {
  background: var(--paper-2);
  border-color: var(--ink);
}
.btn-light {
  background: transparent;
  color: var(--dark-text);
  border-color: rgba(245, 244, 239, 0.5);
}
.btn-light:hover, .btn-light:focus {
  background: rgba(255, 255, 255, 0.08);
  border-color: var(--brand);
  color: var(--brand);
}
.nav-toggle {
  width: 40px;
  height: 40px;
  display: none;
  align-items: center;
  justify-content: center;
  background: transparent;
  border: 1px solid var(--line);
  border-radius: 50%;
  cursor: pointer;
  color: var(--ink);
  font-size: 1rem;
}
.nav-toggle:active { transform: scale(0.96); }
.header-nav {
  background: rgba(245, 244, 239, 0.92);
  backdrop-filter: blur(8px);
  -webkit-backdrop-filter: blur(8px);
}
.header-nav-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 18px;
  min-height: 42px;
}
.nav-channels {
  display: flex;
  align-items: center;
  gap: 4px;
  font-size: 0.9375rem;
}
.nav-channels a {
  position: relative;
  padding: 9px 14px;
  font-weight: 500;
  color: var(--ink);
  border-radius: 8px;
}
.nav-channels a::after {
  content: "";
  position: absolute;
  left: 14px;
  right: 14px;
  bottom: 2px;
  height: 2px;
  border-radius: 2px;
  background: var(--ink);
  transform: scaleX(0);
  transform-origin: center;
  transition: transform .18s ease;
}
.nav-channels a.active {
  font-weight: 600;
  background: transparent;
}
.nav-channels a.active::after {
  transform: scaleX(1);
}
.nav-channels a:hover::after {
  transform: scaleX(0.5);
}
.nav-hot {
  display: flex;
  align-items: center;
  gap: 10px;
  font-size: 0.8125rem;
  color: var(--muted);
}
.nav-hot a {
  padding: 4px 12px;
  border-radius: var(--radius-full);
  background: rgba(22, 26, 24, 0.05);
  color: var(--muted);
  font-weight: 500;
}
.nav-hot a:hover {
  background: var(--brand);
  color: var(--ink);
}
.mobile-drawer {
  position: fixed;
  top: 98px;
  left: 0;
  right: 0;
  background: var(--paper);
  border-bottom: 1px solid var(--line);
  padding: 20px 24px;
  z-index: 99;
  transform: translateY(-12px);
  opacity: 0;
  visibility: hidden;
  transition: opacity .18s ease, transform .18s ease, visibility .18s ease;
  box-shadow: var(--shadow);
}
.mobile-drawer.open {
  opacity: 1;
  visibility: visible;
  transform: translateY(0);
}
.mobile-drawer a {
  display: block;
  padding: 10px 0;
  font-weight: 600;
  border-bottom: 1px solid var(--line);
}
.mobile-drawer a:last-child { border-bottom: 0; }
.hero {
  position: relative;
  min-height: 88vh;
  display: flex;
  align-items: center;
  overflow: hidden;
  color: #fff;
  padding: 120px 0;
}
.hero-bg {
  position: absolute;
  inset: 0;
  background: url('/assets/images/backpic/back-1.png') no-repeat center center;
  background-size: cover;
}
.hero-bg::after {
  content: "";
  position: absolute;
  inset: 0;
  background: linear-gradient(100deg, rgba(18, 25, 22, 0.9) 0%, rgba(18, 25, 22, 0.68) 58%, rgba(18, 25, 22, 0.3) 100%);
}
.hero-content {
  position: relative;
  z-index: 2;
}
.hero-eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-size: 0.8125rem;
  font-weight: 700;
  letter-spacing: 0.16em;
  color: var(--brand);
  background: rgba(215, 241, 113, 0.14);
  border: 1px solid rgba(215, 241, 113, 0.35);
  border-radius: var(--radius-full);
  padding: 7px 14px;
  margin-bottom: 28px;
}
.hero h1 {
  font-size: clamp(2.8rem, 7.6vw, 6.2rem);
  line-height: 1.04;
  font-weight: 800;
  letter-spacing: -0.035em;
  margin: 0 0 26px;
  max-width: 1080px;
  color: #fff;
}
.hero-sub {
  font-size: clamp(1.05rem, 1.6vw, 1.3rem);
  line-height: 1.8;
  color: rgba(245, 244, 239, 0.88);
  max-width: 680px;
  margin-bottom: 38px;
}
.hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 16px;
  align-items: center;
}
.hero-actions .btn-primary {
  padding: 14px 32px;
  font-size: 1rem;
}
.hero-actions .btn-light {
  padding: 14px 28px;
  font-size: 1rem;
}
.scroll-cue {
  position: absolute;
  bottom: 30px;
  left: 50%;
  transform: translateX(-50%);
  color: rgba(245, 244, 239, 0.7);
  font-size: 0.75rem;
  letter-spacing: 0.14em;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 6px;
  z-index: 2;
}
.scroll-cue i {
  display: block;
  animation: cue 1.8s ease-in-out infinite;
}
@keyframes cue {
  0%, 100% { transform: translateY(0); opacity: 0.7; }
  50% { transform: translateY(6px); opacity: 1; }
}
.section {
  padding: var(--space-section) 0;
}
.section-label {
  display: inline-block;
  font-size: 0.8rem;
  font-weight: 700;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--muted);
  border-bottom: 2px solid var(--brand);
  padding-bottom: 6px;
  margin-bottom: 18px;
}
h2 {
  font-size: clamp(2rem, 3.6vw, 3.25rem);
  font-weight: 800;
  line-height: 1.15;
  letter-spacing: -0.02em;
  margin-bottom: 20px;
}
h3 {
  font-size: 1.375rem;
  font-weight: 700;
  letter-spacing: -0.01em;
}
.lead {
  font-size: 1.06rem;
  color: var(--muted);
  line-height: 1.85;
}
.usage-section {
  background: var(--surface);
}
.usage-grid {
  display: flex;
  flex-wrap: wrap;
  gap: 60px;
}
.usage-intro {
  flex: 0 0 38%;
}
.usage-intro .stick-content {
  position: sticky;
  top: 140px;
}
.usage-intro h2 {
  margin-top: 8px;
}
.timeline {
  flex: 0 0 56%;
}
.timeline-item {
  display: flex;
  gap: 28px;
  padding: 0 0 46px;
  position: relative;
}
.timeline-item:not(:last-child)::after {
  content: "";
  position: absolute;
  left: 41px;
  top: 72px;
  bottom: 0;
  width: 1px;
  background: var(--line);
}
.timeline-num {
  flex: 0 0 48px;
  width: 48px;
  height: 48px;
  border-radius: 50%;
  border: 1px solid var(--dark);
  display: inline-flex;
  align-items: center;
  justify-content: center;
  font-family: var(--font-num);
  font-weight: 700;
  font-size: 0.9375rem;
  background: var(--paper);
  color: var(--ink);
  position: relative;
  z-index: 1;
}
.timeline-content {
  flex: 1;
  padding-top: 4px;
}
.timeline-content h3 {
  margin: 0 0 10px;
}
.timeline-content p {
  margin: 0;
  color: var(--muted);
  line-height: 1.85;
}
.timeline-tip {
  border-left: 2px solid var(--brand);
  background: var(--paper);
  padding: 12px 18px;
  border-radius: 0 var(--radius) var(--radius) 0;
  font-size: 0.937rem;
  color: var(--muted);
  margin-top: 18px;
}
.value-section {
  background: var(--paper);
}
.value-grid {
  display: flex;
  flex-wrap: wrap;
  gap: 24px;
  align-items: flex-start;
}
.feature-main {
  flex: 1 1 56%;
  min-width: 340px;
  border-radius: var(--radius-lg);
  overflow: hidden;
  background: var(--surface);
  box-shadow: var(--shadow);
}
.feature-media {
  position: relative;
}
.feature-media img {
  width: 100%;
  height: 340px;
  object-fit: cover;
}
.feature-media::after {
  content: "";
  position: absolute;
  inset: 0;
  background: linear-gradient(180deg, rgba(22, 26, 24, 0) 55%, rgba(22, 26, 24, 0.85) 100%);
}
.feature-caption {
  position: absolute;
  left: 26px;
  right: 26px;
  bottom: 22px;
  color: #fff;
  z-index: 2;
}
.feature-caption .tag {
  font-size: 0.75rem;
  font-weight: 700;
  letter-spacing: 0.1em;
  text-transform: uppercase;
}
.feature-caption h3 {
  color: #fff;
  font-size: 1.6rem;
  margin: 5px 0 4px;
}
.feature-caption p {
  font-size: 0.937rem;
  color: rgba(245, 244, 239, 0.8);
  margin: 0;
}
.feature-extra {
  padding: 24px 26px;
  border-top: 1px solid var(--line);
}
.feature-extra-list {
  display: flex;
  flex-wrap: wrap;
  gap: 10px 20px;
  margin: 0;
  padding: 0;
  list-style: none;
  color: var(--muted);
  font-size: 0.937rem;
}
.feature-side {
  flex: 1 1 34%;
  min-width: 300px;
  display: flex;
  flex-direction: column;
  gap: 18px;
  margin-top: 46px;
}
.side-card {
  background: var(--surface);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow);
  padding: 30px 28px;
}
.side-card .side-num {
  font-family: var(--font-num);
  font-size: 4rem;
  font-weight: 800;
  line-height: 0.9;
  color: var(--ink);
  letter-spacing: -0.04em;
}
.side-card .side-num sup {
  font-size: 1.4rem;
  color: var(--muted);
  font-weight: 600;
  margin-left: 2px;
}
.side-card h3 {
  margin: 18px 0 8px;
}
.side-card p {
  margin: 0;
  color: var(--muted);
  font-size: 0.937rem;
  line-height: 1.8;
}
.side-card img {
  width: 100%;
  height: 150px;
  object-fit: cover;
  border-radius: var(--radius);
  margin-bottom: 14px;
}
.checkline {
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: 0.9rem;
  color: var(--ink);
  padding: 7px 0;
  border-bottom: 1px solid var(--line);
}
.checkline:last-child { border-bottom: 0; }
.checkline i { color: var(--dark); background: var(--brand); border-radius: 50%; width: 20px; height: 20px; display: inline-flex; align-items: center; justify-content: center; font-size: 0.65rem; }
.ticket-section {
  background: var(--dark);
  color: var(--dark-text);
}
.ticket-section .section-label { color: var(--brand); border-color: var(--brand); }
.ticket-section h2 { color: var(--dark-text); }
.ticket-section .lead { color: rgba(245, 244, 239, 0.7); }
.ticket-toolbar {
  display: flex;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 20px;
  align-items: flex-end;
  margin-bottom: 36px;
}
.ticket-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 14px;
}
.ticket-card {
  position: relative;
  background: rgba(255, 255, 255, 0.06);
  border: 1px solid rgba(255, 255, 255, 0.14);
  border-radius: var(--radius-lg);
  padding: 22px 18px 18px;
  transition: border-color .18s ease, background .18s ease, transform .18s ease;
}
.ticket-card:hover {
  border-color: var(--brand);
  background: rgba(215, 241, 113, 0.08);
}
.ticket-no {
  font-size: 2.2rem;
  font-weight: 800;
  font-family: var(--font-num);
  color: var(--brand);
  line-height: 1;
  opacity: 0.9;
}
.ticket-step {
  display: block;
  font-size: 0.75rem;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: rgba(245, 244, 239, 0.55);
  margin: 8px 0 10px;
}
.ticket-title {
  font-size: 1.05rem;
  font-weight: 700;
  color: var(--dark-text);
  margin-bottom: 6px;
}
.ticket-desc {
  font-size: 0.875rem;
  color: rgba(245, 244, 239, 0.68);
  line-height: 1.7;
}
.ticket-status {
  position: absolute;
  top: 18px;
  right: 18px;
  font-size: 0.7rem;
  font-weight: 700;
  padding: 3px 10px;
  border-radius: var(--radius-full);
  background: rgba(215, 241, 113, 0.15);
  color: var(--brand);
}
.ticket-status.waiting {
  background: rgba(245, 244, 239, 0.1);
  color: rgba(245, 244, 239, 0.7);
}
.info-bar {
  display: flex;
  gap: 12px;
  align-items: flex-start;
  margin-top: 38px;
  background: rgba(255, 255, 255, 0.06);
  border: 1px solid rgba(255, 255, 255, 0.14);
  border-radius: var(--radius);
  padding: 16px 18px;
  font-size: 0.937rem;
  color: rgba(245, 244, 239, 0.85);
}
.info-bar i {
  color: var(--brand);
  margin-top: 2px;
}
.cta-main {
  background: var(--dark);
  background-image:
    linear-gradient(rgba(18, 25, 22, 0.82), rgba(18, 25, 22, 0.88)),
    url('/assets/images/backpic/back-2.png');
  background-size: cover;
  background-position: center;
  color: var(--dark-text);
  position: relative;
}
.cta-inner {
  max-width: 860px;
  margin: 0 auto;
  text-align: center;
}
.cta-inner h2 {
  color: #fff;
  font-size: clamp(2.2rem, 4vw, 3.6rem);
}
.cta-inner .lead {
  color: rgba(245, 244, 239, 0.78);
  max-width: 640px;
  margin: 0 auto 28px;
}
.cta-buttons {
  display: flex;
  justify-content: center;
  flex-wrap: wrap;
  gap: 16px;
}
.cta-note {
  margin-top: 32px;
  font-size: 0.81rem;
  color: rgba(245, 244, 239, 0.52);
}
.news-section {
  background: var(--surface);
}
.news-head {
  display: flex;
  align-items: flex-end;
  justify-content: space-between;
  gap: 20px;
  margin-bottom: 28px;
}
.news-list {
  border-top: 1px solid var(--line);
}
.news-item {
  padding: 24px 0;
  border-bottom: 1px solid var(--line);
  transition: background 0.18s ease;
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 16px 20px;
}
.news-item:hover {
  background: rgba(236, 234, 227, 0.4);
}
.news-date {
  flex: 0 0 140px;
  font-family: var(--font-num);
  font-size: 0.9rem;
  color: var(--muted);
}
.news-content {
  flex: 1 1 480px;
  min-width: 280px;
}
.news-category {
  display: inline-block;
  font-size: 0.75rem;
  font-weight: 700;
  letter-spacing: 0.04em;
  color: var(--dark);
  background: var(--brand);
  padding: 3px 10px;
  border-radius: 4px;
  margin-bottom: 7px;
}
.news-title {
  margin: 0 0 6px;
  font-size: 1.18rem;
}
.news-title a {
  display: inline-block;
  position: relative;
}
.news-title a::after {
  content: "";
  position: absolute;
  left: 0;
  right: 0;
  bottom: 2px;
  height: 2px;
  background: var(--brand-strong);
  transform: scaleX(0);
  transform-origin: left center;
  transition: transform .18s ease;
}
.news-title a:hover {
  color: var(--dark);
}
.news-title a:hover::after {
  transform: scaleX(1);
}
.news-excerpt {
  margin: 0;
  font-size: 0.9375rem;
  color: var(--muted);
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}
.news-arrow {
  font-size: 1.1rem;
  color: var(--muted);
  transition: transform 0.18s ease, color 0.18s ease;
}
.news-item:hover .news-arrow {
  transform: translateX(4px);
  color: var(--dark);
}
.news-empty {
  border: 1px dashed var(--line);
  border-radius: var(--radius-lg);
  padding: 64px 24px;
  text-align: center;
  color: var(--muted);
  margin-top: 30px;
}
.news-empty .empty-icon {
  font-size: 2.4rem;
  color: var(--line);
  display: block;
  margin-bottom: 12px;
}
.news-empty p { margin: 0; font-size: 0.937rem; }
.faq-section { background: var(--paper); }
.faq-list {
  max-width: 920px;
  margin: 0 auto;
  border-top: 1px solid var(--line);
}
.faq-item {
  border-bottom: 1px solid var(--line);
  background: transparent;
  transition: background .18s ease;
}
.faq-item.is-open { background: rgba(255, 255, 255, 0.6); }
.faq-q {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 18px;
  padding: 22px 6px;
  cursor: pointer;
  font-weight: 600;
  font-size: 1.125rem;
  background: none;
  border: none;
  width: 100%;
  text-align: left;
  color: var(--ink);
  margin: 0;
}
.faq-icon {
  flex: 0 0 28px;
  width: 28px;
  height: 28px;
  border-radius: 50%;
  border: 1px solid var(--line);
  display: inline-flex;
  align-items: center;
  justify-content: center;
  font-size: 0.85rem;
  position: relative;
  background: var(--surface);
  transition: background .18s ease, border-color .18s ease, transform .18s ease;
}
.faq-icon:before,
.faq-icon:after {
  content: "";
  width: 10px;
  height: 1.6px;
  background: var(--ink);
  display: block;
  position: absolute;
}
.faq-icon:after { transform: rotate(90deg); transition: transform .18s ease; }
.faq-item.is-open .faq-icon { background: var(--brand); border-color: var(--brand); }
.faq-item.is-open .faq-icon:after { transform: rotate(0deg); }
.faq-a {
  max-height: 0;
  overflow: hidden;
  transition: max-height .3s ease;
}
.faq-a-inner {
  padding: 0 6px 24px;
  color: var(--muted);
  font-size: 1rem;
  line-height: 1.85;
}
.faq-a-inner p { margin: 0 0 10px; }
.faq-a-inner p:last-child { margin: 0; }
.site-footer {
  background: var(--dark);
  color: rgba(245, 244, 239, 0.85);
  padding-top: 70px;
}
.footer-main {
  padding-bottom: 40px;
  border-bottom: 1px solid rgba(255, 255, 255, 0.12);
}
.footer-brand {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  margin-bottom: 16px;
  color: var(--dark-text);
}
.footer-brand .brand-text {
  color: var(--dark-text);
  font-size: 1.3rem;
}
.footer-col h4 {
  color: var(--dark-text);
  font-size: 1rem;
  margin-bottom: 16px;
  font-weight: 700;
}
.footer-col p {
  font-size: 0.937rem;
  color: rgba(245, 244, 239, 0.68);
  line-height: 1.8;
  margin: 0;
}
.footer-col ul {
  list-style: none;
  margin: 0;
  padding: 0;
}
.footer-col ul li {
  margin-bottom: 10px;
}
.footer-col ul a {
  color: rgba(245, 244, 239, 0.75);
  font-size: 0.937rem;
}
.footer-col ul a:hover {
  color: var(--brand);
}
.footer-bottom {
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 12px;
  padding: 22px 0;
  font-size: 0.8125rem;
  color: rgba(245, 244, 239, 0.55);
}
.round-img {
  border-radius: 16px;
  box-shadow: var(--shadow);
}
.press-cut {
  background: var(--brand);
  height: 10px;
  width: 10px;
  display: inline-block;
  border-radius: 3px;
}
@media (max-width: 1024px) {
  .usage-intro { flex: 0 0 100%; }
  .usage-intro .stick-content { position: static; }
  .timeline { flex: 0 0 100%; }
  .ticket-grid { grid-template-columns: repeat(2, 1fr); }
  .feature-main { flex: 1 1 100%; }
  .feature-side { flex: 1 1 100%; margin-top: 0; }
}
@media (max-width: 768px) {
  .header-search { width: 150px; }
  .header-nav-inner {
    overflow-x: auto;
    scrollbar-width: none;
  }
  .header-nav-inner::-webkit-scrollbar { display: none; }
  .nav-channels {
    flex-wrap: nowrap;
    white-space: nowrap;
    flex: 1;
  }
  .nav-channels a { padding: 9px 12px; }
  .nav-hot { display: none; }
  .hero { min-height: auto; padding: 100px 0 80px; }
  .hero h1 { letter-spacing: -0.03em; }
  .hero-actions .btn { width: 100%; }
  .ticket-grid { grid-template-columns: 1fr; }
  .news-date { flex: 0 0 100%; }
  .news-item { padding: 20px 0; }
  .news-excerpt { white-space: normal; }
  .timeline-item { gap: 18px; }
  .timeline-item:not(:last-child)::after { left: 35px; }
  .timeline-num { flex: 0 0 44px; width: 44px; height: 44px; font-size: 0.85rem; }
  .nav-toggle { display: inline-flex; }
  .header-search { display: none; }
  .btn-sm { padding: 8px 16px; }
  .site-footer { padding-top: 50px; }
}
@media (max-width: 520px) {
  .header-top-inner { gap: 10px; }
  .brand-text { font-size: 1.1rem; }
  .hero h1 { font-size: 2.5rem; }
  .section { --space-section: 64px; }
  .feature-main { min-width: 0; }
  .feature-side { min-width: 0; }
  .usage-intro { min-width: 0; }
  .timeline { min-width: 0; }
  .ticket-grid { min-width: 0; }
  .grid-container { padding-left: 18px; padding-right: 18px; }
  .cta-buttons .btn { width: 100%; }
  .feature-media img { height: 260px; }
}
@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after {
    animation-duration: 0.01ms !important;
    transition-duration: 0.01ms !important;
  }
}

/* roulang page: category1 */
:root {
      --page-bg: #F5F4EF;
      --surface: #FFFFFF;
      --alt-bg: #ECEAE3;
      --ink: #161A18;
      --muted: #6C746F;
      --line: rgba(22, 26, 24, 0.12);
      --line-strong: rgba(22, 26, 24, 0.22);
      --accent: #D7F171;
      --accent-press: #BEE34A;
      --dark: #121916;
      --dark-soft: #1B241F;
      --dark-text: #F5F4EF;
      --radius: 10px;
      --radius-lg: 18px;
      --radius-pill: 999px;
      --shadow: 0 12px 30px rgba(0, 0, 0, 0.06);
      --shadow-float: 0 18px 40px rgba(0, 0, 0, 0.09);
      --container: 1200px;
      --section-space: clamp(72px, 10vw, 140px);
      --transition: all 0.22s ease;
    }

    *,
    *::before,
    *::after {
      box-sizing: border-box;
    }

    html {
      scroll-behavior: smooth;
      scroll-padding-top: 140px;
    }

    body {
      margin: 0;
      background: var(--page-bg);
      color: var(--ink);
      font-family: "PingFang SC", "Microsoft YaHei", "Noto Sans CJK SC", "Helvetica Neue", Arial, sans-serif;
      line-height: 1.7;
      font-size: 16px;
      -webkit-font-smoothing: antialiased;
    }

    img {
      max-width: 100%;
      display: block;
      height: auto;
    }

    a {
      color: var(--ink);
      text-decoration: none;
    }

    a:focus,
    button:focus,
    input:focus {
      outline: 2px solid var(--accent-press);
      outline-offset: 2px;
    }

    ul,
    ol,
    p,
    figure,
    h1,
    h2,
    h3,
    h4 {
      margin: 0;
    }

    .container,
    .grid-container {
      max-width: var(--container);
      margin-left: auto;
      margin-right: auto;
      padding-left: 20px;
      padding-right: 20px;
    }

    .grid-margin-x > .cell {
      /* 保留 Foundation 栅格能力 */
    }

    .section {
      padding-top: var(--section-space);
      padding-bottom: var(--section-space);
    }

    .section-tight {
      padding-top: clamp(48px, 7vw, 84px);
      padding-bottom: clamp(48px, 7vw, 84px);
    }

    /* ===== Header ===== */
    .site-header {
      position: sticky;
      top: 0;
      z-index: 100;
      background: rgba(245, 244, 239, 0.96);
      backdrop-filter: blur(12px);
      border-bottom: 1px solid var(--line);
      transition: var(--transition);
    }

    .site-header.scrolled .header-top {
      min-height: 48px;
    }

    .header-top {
      min-height: 56px;
      transition: min-height 0.25s ease;
    }

    .header-top-inner {
      display: flex;
      align-items: center;
      justify-content: space-between;
      gap: 16px;
      min-height: 56px;
    }

    .brand {
      display: inline-flex;
      align-items: center;
      gap: 10px;
      flex-shrink: 0;
    }

    .brand-mark {
      width: 28px;
      height: 28px;
      display: inline-flex;
      align-items: center;
      justify-content: center;
    }

    .brand-mark svg {
      width: 26px;
      height: 26px;
      fill: none;
      stroke: var(--accent-press);
      stroke-width: 1.8;
      stroke-linecap: round;
      stroke-linejoin: round;
    }

    .brand-text {
      font-size: 1.2rem;
      font-weight: 800;
      letter-spacing: -0.02em;
      color: var(--ink);
    }

    .header-actions {
      display: flex;
      align-items: center;
      gap: 10px;
    }

    .header-search {
      position: relative;
      display: flex;
      align-items: center;
    }

    .header-search input {
      width: 180px;
      height: 36px;
      border: 1px solid var(--line-strong);
      border-radius: var(--radius-pill);
      background: var(--surface);
      padding: 0 36px 0 16px;
      font-size: 0.875rem;
      color: var(--ink);
      transition: var(--transition);
    }

    .header-search input::placeholder {
      color: var(--muted);
    }

    .header-search input:hover,
    .header-search input:focus {
      border-color: var(--ink);
      outline: none;
      width: 220px;
    }

    .header-search .search-submit {
      position: absolute;
      right: 4px;
      width: 30px;
      height: 30px;
      border: 0;
      border-radius: 50%;
      background: transparent;
      color: var(--muted);
      cursor: pointer;
      display: inline-flex;
      align-items: center;
      justify-content: center;
      transition: var(--transition);
    }

    .header-search .search-submit:hover {
      color: var(--ink);
      background: var(--alt-bg);
    }

    .btn {
      display: inline-flex;
      align-items: center;
      justify-content: center;
      gap: 8px;
      border: 1px solid transparent;
      border-radius: var(--radius-pill);
      font-family: inherit;
      font-weight: 600;
      cursor: pointer;
      transition: var(--transition);
      white-space: nowrap;
    }

    .btn-sm {
      height: 36px;
      padding: 0 18px;
      font-size: 0.875rem;
    }

    .btn-primary {
      background: var(--accent);
      color: var(--dark);
    }

    .btn-primary:hover {
      background: var(--accent-press);
      transform: translateY(-2px);
      box-shadow: var(--shadow);
    }

    .btn-primary:active {
      transform: translateY(0);
      background: var(--accent);
    }

    .channel-bar {
      border-top: 1px solid rgba(22, 26, 24, 0.05);
      background: transparent;
    }

    .scrolled .channel-bar {
      box-shadow: 0 4px 14px rgba(0, 0, 0, 0.03);
    }

    .channel-inner {
      display: flex;
      align-items: center;
      justify-content: space-between;
      height: 42px;
      gap: 18px;
    }

    .nav-channels {
      display: flex;
      align-items: center;
      gap: 24px;
      height: 100%;
    }

    .nav-channels a {
      position: relative;
      display: inline-flex;
      align-items: center;
      height: 42px;
      font-size: 0.95rem;
      font-weight: 600;
      color: var(--ink);
      opacity: 0.72;
      transition: var(--transition);
    }

    .nav-channels a:hover {
      opacity: 1;
      color: var(--ink);
    }

    .nav-channels a.active {
      opacity: 1;
    }

    .nav-channels a.active::after {
      content: "";
      position: absolute;
      left: 0;
      right: 0;
      bottom: -1px;
      height: 2px;
      background: var(--accent-press);
    }

    .hot-queries {
      display: flex;
      align-items: center;
      gap: 6px;
      font-size: 0.78rem;
      color: var(--muted);
      white-space: nowrap;
    }

    .hot-queries a {
      border: 1px solid var(--line);
      border-radius: var(--radius-pill);
      padding: 3px 10px;
      color: var(--muted);
      transition: var(--transition);
    }

    .hot-queries a:hover {
      border-color: var(--ink);
      color: var(--ink);
    }

    .mobile-toggle {
      display: none;
      width: 36px;
      height: 36px;
      border: 1px solid var(--line);
      background: var(--surface);
      border-radius: var(--radius);
      color: var(--ink);
      align-items: center;
      justify-content: center;
      cursor: pointer;
    }

    /* ===== Page hero ===== */
    .category-hero {
      position: relative;
      overflow: hidden;
      background:
        linear-gradient(130deg, rgba(18, 25, 22, 0.88), rgba(18, 25, 22, 0.42)),
        url("/assets/images/backpic/back-2.png") center / cover no-repeat;
      color: var(--dark-text);
      padding: clamp(72px, 9vw, 116px) 0;
    }

    .breadcrumb {
      display: flex;
      align-items: center;
      gap: 8px;
      font-size: 0.875rem;
      margin-bottom: 22px;
      color: rgba(245, 244, 239, 0.7);
    }

    .breadcrumb a {
      color: rgba(245, 244, 239, 0.82);
      transition: var(--transition);
    }

    .breadcrumb a:hover {
      color: var(--accent);
    }

    .category-hero .eyebrow {
      font-size: 0.82rem;
      letter-spacing: 0.12em;
      font-weight: 700;
      color: var(--accent);
      margin-bottom: 20px;
      text-transform: uppercase;
    }

    .category-hero h1 {
      font-size: clamp(2.4rem, 4.4vw, 4rem);
      line-height: 1.12;
      font-weight: 800;
      max-width: 780px;
      letter-spacing: -0.035em;
      margin-bottom: 20px;
      color: var(--dark-text);
    }

    .category-hero .hero-lead {
      font-size: clamp(1rem, 1.4vw, 1.175rem);
      color: rgba(245, 244, 239, 0.82);
      max-width: 700px;
      margin-bottom: 28px;
    }

    .hero-note-line {
      display: flex;
      align-items: flex-start;
      gap: 10px;
      color: rgba(245, 244, 239, 0.7);
      font-size: 0.9rem;
      border-top: 1px solid rgba(245, 244, 239, 0.16);
      padding-top: 18px;
      max-width: 700px;
    }

    .hero-note-line i {
      color: var(--accent);
      margin-top: 4px;
    }

    /* ===== Guide Layout ===== */
    .guide-section {
      padding-top: clamp(56px, 8vw, 96px);
      padding-bottom: clamp(56px, 8vw, 96px);
    }

    .guide-layout {
      padding-top: clamp(48px, 7vw, 84px);
    }

    .doc-toc {
      position: sticky;
      top: 150px;
      align-self: flex-start;
    }

    .doc-toc-inner {
      background: var(--surface);
      border: 1px solid var(--line);
      border-radius: var(--radius-lg);
      padding: 26px;
      box-shadow: var(--shadow);
    }

    .doc-toc h2 {
      font-size: 1rem;
      font-weight: 800;
      margin-bottom: 16px;
      letter-spacing: -0.01em;
    }

    .doc-toc ul {
      list-style: none;
      margin: 0;
      display: flex;
      flex-direction: column;
      gap: 2px;
    }

    .doc-toc a {
      display: inline-flex;
      align-items: center;
      font-size: 0.9rem;
      color: var(--muted);
      padding: 7px 0;
      border-left: 2px solid var(--line);
      padding-left: 13px;
      transition: var(--transition);
      line-height: 1.4;
    }

    .doc-toc a:hover,
    .doc-toc a.is-active {
      color: var(--ink);
      border-left-color: var(--accent-press);
    }

    .doc-toc .toc-cta {
      margin-top: 14px;
      padding-top: 18px;
      border-top: 1px solid var(--line);
    }

    /* ===== Doc body ===== */
    .doc-body {
      display: flex;
      flex-direction: column;
      gap: clamp(56px, 7vw, 80px);
    }

    .doc-section-header {
      margin-bottom: 28px;
    }

    .doc-step-label {
      display: inline-flex;
      align-items: center;
      gap: 8px;
      font-size: 0.82rem;
      font-weight: 800;
      color: var(--muted);
      letter-spacing: 0.08em;
      margin-bottom: 10px;
    }

    .doc-step-label .step-count {
      color: var(--accent-press);
      background: var(--dark);
      border-radius: 999px;
      font-size: 0.72rem;
      padding: 2px 9px;
    }

    .doc-section h2 {
      font-size: clamp(1.8rem, 2.6vw, 2.5rem);
      line-height: 1.18;
      letter-spacing: -0.025em;
      font-weight: 800;
      margin-bottom: 14px;
    }

    .doc-section .section-desc {
      font-size: 1.05rem;
      color: var(--muted);
      max-width: 720px;
      line-height: 1.8;
    }

    .doc-copy {
      font-size: 1rem;
      color: var(--ink);
      line-height: 1.95;
      max-width: 720px;
    }

    .doc-copy p + p {
      margin-top: 1em;
    }

    .guide-figure {
      margin-top: 30px;
      border-radius: var(--radius-lg);
      overflow: hidden;
      box-shadow: var(--shadow);
    }

    .guide-figure img {
      width: 100%;
      aspect-ratio: 16 / 8;
      object-fit: cover;
    }

    .guide-figure figcaption {
      background: var(--surface);
      padding: 12px 18px;
      font-size: 0.85rem;
      color: var(--muted);
      border-top: 1px solid var(--line);
    }

    /* Steps */
    .quick-steps {
      margin-top: 28px;
    }

    .step-list {
      display: grid;
      grid-template-columns: repeat(4, 1fr);
      gap: 18px;
    }

    .step-card {
      background: var(--surface);
      border: 1px solid var(--line);
      border-radius: var(--radius-lg);
      padding: 26px 22px;
      position: relative;
      transition: var(--transition);
    }

    .step-card::before {
      content: "";
      position: absolute;
      top: 0;
      left: 22px;
      right: 22px;
      height: 2px;
      background: linear-gradient(90deg, var(--accent) 0%, var(--accent-press) 100%);
      border-radius: 2px;
      opacity: 0.7;
    }

    .step-card:hover {
      transform: translateY(-4px);
      box-shadow: var(--shadow-float);
      border-color: transparent;
    }

    .step-num {
      font-size: 0.78rem;
      font-weight: 800;
      letter-spacing: 0.18em;
      color: var(--muted);
      display: block;
      margin-bottom: 16px;
    }

    .step-card h3 {
      font-size: 1.05rem;
      font-weight: 800;
      margin-bottom: 10px;
      letter-spacing: -0.01em;
    }

    .step-card p {
      font-size: 0.9rem;
      color: var(--muted);
      line-height: 1.7;
    }

    /* Checklist */
    .check-wrap {
      display: grid;
      grid-template-columns: 1fr 1fr;
      gap: 20px;
      margin-top: 28px;
    }

    .check-panel {
      background: var(--surface);
      border-radius: var(--radius-lg);
      padding: 26px;
      box-shadow: var(--shadow);
      border: 1px solid var(--line);
    }

    .check-panel h3 {
      font-size: 1.1rem;
      font-weight: 800;
      margin-bottom: 18px;
      display: flex;
      align-items: center;
      gap: 10px;
    }

    .check-panel h3 i {
      color: var(--accent-press);
    }

    .check-list {
      list-style: none;
      margin: 0;
      display: flex;
      flex-direction: column;
      gap: 14px;
    }

    .check-list li {
      display: flex;
      align-items: flex-start;
      gap: 10px;
      color: var(--ink);
      line-height: 1.55;
      font-size: 0.95rem;
    }

    .check-list li i {
      color: var(--accent-press);
      margin-top: 5px;
      font-size: 0.9rem;
      width: 16px;
      text-align: center;
    }

    .check-item-input {
      display: flex;
      align-items: flex-start;
      gap: 10px;
      cursor: pointer;
      font-size: 0.95rem;
      line-height: 1.6;
    }

    .check-item-input input {
      margin-top: 4px;
      accent-color: var(--accent-press);
      width: 16px;
      height: 16px;
      flex-shrink: 0;
    }

    .ci-label {
      color: var(--muted);
      font-style: normal;
    }

    .note-banner {
      display: flex;
      gap: 14px;
      background: rgba(215, 241, 113, 0.18);
      border: 1px solid rgba(215, 241, 113, 0.42);
      border-radius: var(--radius);
      padding: 18px 20px;
      margin-top: 24px;
      font-size: 0.92rem;
      line-height: 1.7;
    }

    .note-banner i {
      color: var(--dark);
      margin-top: 3px;
    }

    /* Timeline */
    .timeline-list {
      position: relative;
      margin-top: 30px;
      padding-left: 4px;
      list-style: none;
    }

    .timeline-list::before {
      content: "";
      position: absolute;
      left: 10px;
      top: 12px;
      bottom: 12px;
      width: 1px;
      background: var(--line-strong);
    }

    .timeline-list li {
      position: relative;
      padding-left: 42px;
      padding-bottom: 30px;
    }

    .timeline-list li:last-child {
      padding-bottom: 0;
    }

    .timeline-marker {
      position: absolute;
      left: 0;
      top: 8px;
      width: 20px;
      height: 20px;
      border-radius: 50%;
      background: var(--accent);
      border: 4px solid var(--page-bg);
      box-shadow: 0 0 0 1px var(--accent-press);
    }

    .timeline-list h3 {
      font-size: 1.05rem;
      font-weight: 800;
      margin-bottom: 6px;
      letter-spacing: -0.01em;
    }

    .timeline-list p {
      color: var(--muted);
      max-width: 620px;
      font-size: 0.95rem;
      line-height: 1.8;
    }

    /* FAQ */
    .faq-panel {
      background: var(--surface);
      border: 1px solid var(--line);
      border-radius: var(--radius-lg);
      overflow: hidden;
      margin-top: 28px;
    }

    .faq-item + .faq-item {
      border-top: 1px solid var(--line);
    }

    .faq-trigger {
      width: 100%;
      display: flex;
      align-items: center;
      justify-content: space-between;
      gap: 20px;
      background: transparent;
      border: 0;
      padding: 22px 26px;
      font-size: 1rem;
      font-weight: 700;
      color: var(--ink);
      cursor: pointer;
      text-align: left;
      font-family: inherit;
      transition: var(--transition);
    }

    .faq-trigger:hover {
      background: rgba(236, 234, 227, 0.5);
    }

    .faq-trigger[aria-expanded="true"] {
      background: rgba(215, 241, 113, 0.12);
    }

    .faq-icon {
      position: relative;
      width: 20px;
      height: 20px;
      flex-shrink: 0;
      border: 1px solid var(--line-strong);
      border-radius: 50%;
      transition: var(--transition);
    }

    .faq-icon::before,
    .faq-icon::after {
      content: "";
      position: absolute;
      background: var(--ink);
      border-radius: 2px;
      transition: var(--transition);
    }

    .faq-icon::before {
      width: 9px;
      height: 1.5px;
      left: 4.5px;
      top: 8.2px;
    }

    .faq-icon::after {
      width: 1.5px;
      height: 9px;
      left: 8.2px;
      top: 4.5px;
    }

    .faq-trigger[aria-expanded="true"] .faq-icon::after {
      transform: scaleY(0);
    }

    .faq-content {
      display: none;
      padding: 0 26px 24px;
      color: var(--muted);
      font-size: 0.95rem;
      line-height: 1.85;
    }

    .faq-content.open {
      display: block;
    }

    /* CTA */
    .cta-section {
      background: var(--dark);
      padding: clamp(64px, 9vw, 110px) 0;
      color: var(--dark-text);
      overflow: hidden;
      position: relative;
    }

    .cta-section::after {
      content: "";
      position: absolute;
      right: -120px;
      top: -120px;
      width: 360px;
      height: 360px;
      border-radius: 50%;
      background: radial-gradient(circle, rgba(215, 241, 113, 0.14), transparent 65%);
      pointer-events: none;
    }

    .cta-inner {
      display: flex;
      flex-wrap: wrap;
      align-items: center;
      justify-content: space-between;
      gap: 34px;
      position: relative;
      z-index: 2;
    }

    .cta-info h2 {
      font-size: clamp(2rem, 3.2vw, 3rem);
      letter-spacing: -0.02em;
      line-height: 1.16;
      margin-bottom: 14px;
    }

    .cta-info p {
      color: rgba(245, 244, 239, 0.72);
      max-width: 560px;
      font-size: 1.02rem;
      line-height: 1.85;
    }

    .cta-buttons {
      display: flex;
      gap: 14px;
      flex-wrap: wrap;
    }

    .btn-accent {
      background: var(--accent);
      color: var(--dark);
      font-size: 1rem;
      padding: 0 30px;
      height: 52px;
    }

    .btn-accent:hover {
      background: var(--accent-press);
      transform: translateY(-2px);
      box-shadow: 0 14px 30px rgba(0, 0, 0, 0.18);
    }

    .btn-accent:active {
      transform: translateY(0);
    }

    .btn-outline {
      background: transparent;
      color: var(--dark-text);
      border-color: rgba(245, 244, 239, 0.42);
      font-size: 1rem;
      padding: 0 30px;
      height: 52px;
    }

    .btn-outline:hover {
      border-color: var(--accent);
      color: var(--accent);
      transform: translateY(-2px);
    }

    .btn-outline:active {
      transform: translateY(0);
    }

    .btn-ghost-dark {
      border-color: var(--line-strong);
      color: var(--ink);
      font-size: 0.9rem;
      padding: 0 20px;
      height: 40px;
    }

    .btn-ghost-dark:hover {
      background: var(--alt-bg);
      border-color: var(--ink);
      transform: translateY(-2px);
    }

    /* ===== Footer ===== */
    .site-footer {
      background: var(--dark);
      color: rgba(245, 244, 239, 0.72);
      padding: 72px 0 34px;
      font-size: 0.95rem;
    }

    .footer-main {
      padding-bottom: 48px;
    }

    .footer-brand {
      display: flex;
      align-items: center;
      gap: 10px;
      margin-bottom: 16px;
    }

    .footer-brand .brand-text {
      color: var(--dark-text);
    }

    .footer-brand .brand-mark svg {
      fill: none;
      stroke: var(--accent);
    }

    .site-footer h4 {
      color: var(--dark-text);
      font-size: 0.98rem;
      font-weight: 700;
      margin-bottom: 16px;
      letter-spacing: -0.01em;
    }

    .site-footer ul {
      list-style: none;
      margin: 0;
      display: flex;
      flex-direction: column;
      gap: 10px;
    }

    .site-footer ul a {
      color: rgba(245, 244, 239, 0.66);
      transition: var(--transition);
    }

    .site-footer ul a:hover {
      color: var(--accent);
    }

    .site-footer p {
      line-height: 1.8;
      color: rgba(245, 244, 239, 0.6);
      font-size: 0.9rem;
    }

    .site-footer .footer-col p {
      margin-bottom: 0;
    }

    .footer-bottom {
      border-top: 1px solid rgba(245, 244, 239, 0.1);
      padding-top: 24px;
      display: flex;
      justify-content: space-between;
      gap: 12px;
      color: rgba(245, 244, 239, 0.48);
      font-size: 0.85rem;
      flex-wrap: wrap;
    }

    /* ===== Responsive ===== */
    @media (max-width: 1024px) {
      .step-list {
        grid-template-columns: repeat(2, 1fr);
      }

      .hot-queries {
        display: none;
      }
    }

    @media (max-width: 860px) {
      html {
        scroll-padding-top: 120px;
      }

      .doc-toc {
        position: static;
        width: 100%;
        margin-bottom: 26px;
      }

      .doc-toc-inner {
        padding: 18px;
        overflow-x: auto;
      }

      .doc-toc h2 {
        margin-bottom: 8px;
      }

      .doc-toc ul {
        flex-direction: row;
        gap: 6px;
        white-space: nowrap;
      }

      .doc-toc a {
        border-left: 0;
        border-bottom: 2px solid transparent;
        padding: 6px 12px;
        font-size: 0.88rem;
        border-radius: var(--radius-pill);
      }

      .doc-toc a:hover,
      .doc-toc a.is-active {
        border-left: 0;
        border-bottom: 0;
        background: var(--accent);
        color: var(--dark);
      }

      .doc-toc .toc-cta {
        display: none;
      }

      .guide-layout {
        display: flex;
        flex-direction: column;
      }
    }

    @media (max-width: 768px) {
      .site-header {
        position: sticky;
      }

      .header-search {
        display: none;
      }

      .mobile-toggle {
        display: inline-flex;
      }

      .channel-bar {
        overflow-x: auto;
        scrollbar-width: none;
      }

      .channel-bar::-webkit-scrollbar {
        display: none;
      }

      .channel-inner {
        height: auto;
        padding: 6px 0;
        overflow-x: auto;
        white-space: nowrap;
      }

      .nav-channels {
        gap: 18px;
      }

      .nav-channels a {
        height: 34px;
        white-space: nowrap;
      }

      .nav-channels a.active::after {
        bottom: 0;
      }

      .check-wrap {
        grid-template-columns: 1fr;
        gap: 16px;
      }

      .step-list {
        grid-template-columns: 1fr;
      }

      .category-hero h1 {
        font-size: clamp(2rem, 9vw, 2.9rem);
      }

      .footer-bottom {
        flex-direction: column;
      }
    }

    @media (max-width: 520px) {
      .header-top-inner {
        gap: 10px;
      }

      .brand-text {
        font-size: 1.05rem;
      }

      .header-cta {
        display: none;
      }

      .guide-figure img {
        aspect-ratio: 4 / 3;
      }

      .faq-trigger {
        padding: 18px 18px;
        font-size: 0.95rem;
      }

      .faq-content {
        padding: 0 18px 20px;
      }

      .container,
      .grid-container {
        padding-left: 16px;
        padding-right: 16px;
      }

      .cta-buttons .btn {
        width: 100%;
      }
    }

    @media (prefers-reduced-motion: reduce) {
      *,
      *::before,
      *::after {
        animation: none !important;
        transition: none !important;
        scroll-behavior: auto !important;
      }
    }

/* roulang page: article */
:root{
  --page-bg:#F5F4EF;
  --alt-bg:#ECEAE3;
  --surface:#FFFFFF;
  --ink:#161A18;
  --muted:#6C746F;
  --line:rgba(22,26,24,.12);
  --accent:#D7F171;
  --accent-deep:#BEE34A;
  --dark:#121916;
  --dark-text:#F5F4EF;
  --radius:10px;
  --radius-lg:18px;
  --shadow:0 18px 48px rgba(18,25,22,.08);
  --shadow-sm:0 6px 18px rgba(18,25,22,.06);
  --ease:.2s ease;
}
*,*::before,*::after{box-sizing:border-box}
html{scroll-behavior:smooth;-webkit-text-size-adjust:100%}
body{
  margin:0;
  background:var(--page-bg);
  color:var(--ink);
  font-family:"Inter",-apple-system,BlinkMacSystemFont,"Segoe UI","PingFang SC","Hiragino Sans GB","Microsoft YaHei","Noto Sans CJK SC",sans-serif;
  line-height:1.65;
  font-size:16px;
}
img{max-width:100%;display:block}
a{color:inherit;text-decoration:none;transition:color var(--ease),background var(--ease),border var(--ease)}
button,input,select,textarea{font:inherit;color:inherit}
button{cursor:pointer;background:none;border:0;padding:0}
ul,ol,dl,dd,figure,p,h1,h2,h3,h4,h5,h6{margin:0;padding:0}
a:focus-visible,button:focus-visible,input:focus-visible,select:focus-visible,textarea:focus-visible{outline:3px solid rgba(215,241,113,.75);outline-offset:3px}
.grid-container{max-width:1320px;margin-left:auto;margin-right:auto}
.page-section{padding-top:clamp(70px,8vw,120px);padding-bottom:clamp(70px,8vw,120px)}
.section-eyebrow{display:inline-flex;align-items:center;gap:10px;font-size:13px;letter-spacing:.12em;font-weight:700;color:var(--muted);text-transform:uppercase;margin-bottom:18px}
.section-title{font-size:clamp(2rem,3.6vw,3.3rem);line-height:1.12;letter-spacing:-.025em;font-weight:800;color:var(--ink)}
.section-intro{font-size:16px;color:var(--muted);max-width:660px;margin-top:14px;line-height:1.8}

/* Reading progress */
.reading-progress{
  position:fixed;top:0;left:0;height:3px;background:var(--accent);width:0;z-index:9999;
  box-shadow:0 0 8px rgba(215,241,113,.5);
  transition:width .08s linear;
}

/* Header */
.site-header{position:sticky;top:0;z-index:1000;width:100%;background:rgba(255,255,255,.96);backdrop-filter:blur(12px);border-bottom:1px solid var(--line)}
.site-header.is-scrolled{box-shadow:0 6px 20px rgba(18,25,22,.04)}
.top-brand-row{background:rgba(255,255,255,.88);backdrop-filter:blur(10px);border-bottom:1px solid var(--line);transition:border-color var(--ease)}
.topbar-inner{display:flex;align-items:center;justify-content:space-between;gap:20px;height:58px;transition:height var(--ease);position:relative}
.site-header.is-scrolled .topbar-inner{height:48px}
.brand-logo{display:inline-flex;align-items:center;gap:10px;flex-shrink:0;font-weight:800;font-size:20px;letter-spacing:-.02em}
.brand-mark{width:34px;height:34px;border-radius:50%;background:var(--dark);display:inline-flex;align-items:center;justify-content:center;flex:0 0 34px}
.brand-mark svg{width:20px;height:20px;fill:none;stroke:var(--accent);stroke-width:2;stroke-linecap:round;stroke-linejoin:round}
.brand-text{color:var(--ink);white-space:nowrap}
.header-actions{display:flex;align-items:center;gap:10px}
.search-btn,.menu-toggle{width:40px;height:40px;border-radius:999px;display:inline-flex;align-items:center;justify-content:center;color:var(--ink);background:var(--page-bg);border:1px solid transparent;transition:all var(--ease)}
.search-btn:hover,.menu-toggle:hover{border-color:var(--line);background:#fff;color:var(--ink)}
.menu-toggle{display:none;font-size:18px}
.header-cta{display:inline-flex;align-items:center;justify-content:center;height:40px;padding:0 20px;border-radius:999px;background:var(--accent);color:var(--dark);font-size:13px;font-weight:800;letter-spacing:.02em;transition:all var(--ease);white-space:nowrap}
.header-cta:hover{background:var(--accent-deep);transform:translateY(-1px)}
.header-cta i{margin-right:7px;font-size:12px}
.search-panel{position:absolute;right:0;top:calc(100% + 12px);width:min(460px,calc(100vw - 32px));background:#fff;border:1px solid var(--line);border-radius:14px;padding:10px;display:flex;align-items:center;gap:10px;box-shadow:var(--shadow);opacity:0;visibility:hidden;transform:translateY(-6px);transition:all .2s ease}
.search-panel.open{opacity:1;visibility:visible;transform:translateY(0)}
.search-panel i{color:var(--muted);padding-left:8px}
.search-panel input{flex:1;border:0;background:transparent;min-width:0;outline:none;font-size:14px;color:var(--ink)}
.search-panel input::placeholder{color:var(--muted)}
.search-panel-close{width:32px;height:32px;border-radius:10px;background:var(--page-bg);color:var(--muted);display:flex;align-items:center;justify-content:center;font-size:14px;transition:all var(--ease)}
.search-panel-close:hover{background:var(--alt-bg);color:var(--ink)}

/* Nav channels */
.nav-channels-row{background:rgba(255,255,255,.92);transition:background var(--ease)}
.nav-wrap-inner{display:flex;align-items:center;justify-content:space-between;gap:18px;min-height:42px;transition:min-height var(--ease)}
.nav-channels{display:flex;align-items:center;gap:4px;flex-wrap:nowrap;list-style:none;margin:0;padding:0}
.nav-channels a{
  position:relative;display:inline-flex;align-items:center;height:42px;padding:0 16px;font-size:14px;font-weight:600;color:var(--muted);
  transition:color var(--ease);white-space:nowrap;
}
.nav-channels a:first-child{padding-left:0}
.nav-channels a::after{content:"";position:absolute;left:14px;right:14px;bottom:0;height:2px;border-radius:2px;background:transparent;transition:background var(--ease)}
.nav-channels a:first-child::after{left:0}
.nav-channels a:hover{color:var(--ink)}
.nav-channels a.active{color:var(--ink)}
.nav-channels a.active::after{background:var(--accent-deep)}
.hot-links{display:inline-flex;align-items:center;gap:8px;flex-shrink:0}
.hot-link{display:inline-flex;align-items:center;gap:6px;height:26px;padding:0 12px;border-radius:999px;font-size:12px;font-weight:600;color:var(--muted);background:var(--page-bg);border:1px solid var(--line);transition:all var(--ease)}
.hot-link i{font-size:9px;color:var(--muted)}
.hot-link:hover{border-color:var(--accent-deep);color:var(--ink);background:#fff}

/* Article main */
.article-main{min-height:60vh;padding-bottom:80px}
.breadcrumb{padding:34px 0 0}
.breadcrumb ol{display:flex;flex-wrap:wrap;list-style:none;margin:0;padding:0;align-items:center;gap:6px;font-size:13px;color:var(--muted)}
.breadcrumb li{display:inline-flex;align-items:center;gap:8px}
.breadcrumb li+li::before{content:"/";color:var(--line);font-size:12px}
.breadcrumb a{font-weight:600;color:var(--muted)}
.breadcrumb a:hover{color:var(--ink)}
.breadcrumb [aria-current="page"]{color:var(--ink);font-weight:700}

/* Article header */
.article-header{max-width:980px;margin:42px auto 0;text-align:center;padding:0 20px}
.article-kicker{display:inline-flex;align-items:center;gap:10px;height:30px;padding:0 16px;border-radius:999px;background:var(--dark);color:var(--accent);font-size:12px;font-weight:800;letter-spacing:.1em;text-transform:uppercase}
.article-header h1{font-size:clamp(2.1rem,4.6vw,4.1rem);line-height:1.12;letter-spacing:-.03em;font-weight:900;color:var(--ink);margin:22px auto 0;max-width:900px;text-wrap:balance}
.article-meta{display:flex;align-items:center;justify-content:center;flex-wrap:wrap;gap:12px 22px;margin-top:26px;color:var(--muted);font-size:14px}
.meta-item{display:inline-flex;align-items:center;gap:7px}
.meta-item i{color:var(--accent-deep)}
.article-cover{max-width:1180px;margin:46px auto 0;padding:0 20px}
.article-cover figure,.article-cover{margin-left:auto;margin-right:auto}
.article-cover-img{border-radius:20px;overflow:hidden;border:1px solid rgba(255,255,255,.4);box-shadow:var(--shadow);background:#fff}
.article-cover-img img{width:100%;aspect-ratio:21/9;object-fit:cover}
.article-card{max-width:920px;margin:44px auto 0;padding:clamp(24px,5vw,56px);background:#fff;border:1px solid var(--line);border-radius:var(--radius-lg);box-shadow:var(--shadow-sm)}
.article-body{font-size:17px;line-height:1.9;color:#242A26;word-wrap:break-word;overflow-wrap:break-word}
.article-body>p{margin:0 0 1.6em;font-size:17px;color:#28302B}
.article-body h2,.article-body h3,.article-body h4{color:var(--ink);line-height:1.3;font-weight:800;letter-spacing:-.02em;margin:1.8em 0 .7em}
.article-body h2{font-size:clamp(1.6rem,2.4vw,2.4rem);padding-top:10px}
.article-body h3{font-size:1.55rem}
.article-body h4{font-size:1.225rem}
.article-body ul,.article-body ol{margin:0 0 1.6em;padding-left:1.35em}
.article-body li{margin-bottom:.5em}
.article-body ul li::marker{color:var(--accent-deep)}
.article-body img{border-radius:10px;border:1px solid var(--line);margin:1.4em 0}
.article-body a{color:var(--ink);text-decoration:underline;text-decoration-color:rgba(18,25,22,.3);text-underline-offset:4px;transition:all var(--ease)}
.article-body a:hover{text-decoration-color:var(--accent-deep);color:#000}
.article-body blockquote{margin:2em 0;padding:4px 0 4px 28px;border-left:3px solid var(--accent);background:rgba(215,241,113,.06);font-size:1.05em;color:var(--muted);border-radius:0 10px 10px 0}
.article-body blockquote p{margin-bottom:.6em}
.article-body blockquote p:last-child{margin-bottom:0}
.article-body table{width:100%;margin:2em 0;border-collapse:collapse;font-size:15px}
.article-body th{background:var(--dark);color:var(--dark-text);text-align:left;padding:12px 14px;font-weight:700}
.article-body td{padding:12px 14px;border-bottom:1px solid var(--line);vertical-align:top}
.article-body tr:nth-child(even) td{background:var(--page-bg)}
.article-body code{background:var(--alt-bg);border-radius:6px;padding:2px 8px;font-size:.9em;font-family:"SFMono-Regular",Consolas,"Liberation Mono",monospace;word-break:break-all}
.article-body pre{background:var(--dark);color:var(--dark-text);padding:22px;border-radius:12px;overflow-x:auto;line-height:1.6;margin:1.6em 0}
.article-body pre code{background:transparent;padding:0}
.article-body hr{border:0;border-top:1px solid var(--line);margin:2.4em 0}

/* Tags */
.article-tags{display:flex;align-items:center;flex-wrap:wrap;gap:10px;margin-top:42px;padding-top:26px;border-top:1px solid var(--line)}
.article-tags .tags-label{font-size:13px;font-weight:700;color:var(--muted);letter-spacing:.05em}
.post-tag{display:inline-flex;align-items:center;height:28px;padding:0 14px;border-radius:999px;background:var(--page-bg);border:1px solid var(--line);font-size:12px;font-weight:600;color:var(--muted);transition:all var(--ease)}
.post-tag:hover{background:var(--accent);border-color:var(--accent);color:var(--dark)}

/* Post links */
.post-link-nav{max-width:920px;margin:34px auto 0;display:grid;grid-template-columns:1fr 1fr;gap:16px;padding:0 20px}
.post-link-card{display:flex;align-items:center;gap:18px;background:#fff;border:1px solid var(--line);border-radius:14px;padding:20px 22px;box-shadow:var(--shadow-sm);transition:all var(--ease);min-height:92px}
.post-link-card:hover{border-color:var(--accent-deep);box-shadow:var(--shadow);transform:translateY(-2px)}
.post-link-card .arrow{color:var(--accent-deep);font-size:20px;flex:0 0 auto}
.post-link-card .link-text{display:flex;flex-direction:column;gap:4px;min-width:0}
.post-link-card span:not(.arrow){font-size:12px;color:var(--muted)}
.post-link-card strong{font-size:15px;color:var(--ink);line-height:1.5;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.post-link-card.next{justify-content:flex-end;text-align:right}

/* Related */
.related-section{background:var(--alt-bg);padding:clamp(70px,8vw,110px) 0}
.related-header{display:flex;align-items:flex-end;justify-content:space-between;gap:24px;margin-bottom:36px}
.related-header .section-title{font-size:clamp(1.8rem,3vw,2.8rem)}
.related-grid{row-gap:24px}
.related-card{background:#fff;border-radius:18px;border:1px solid var(--line);overflow:hidden;height:100%;display:flex;flex-direction:column;box-shadow:var(--shadow-sm);transition:all var(--ease)}
.related-card:hover{box-shadow:var(--shadow);transform:translateY(-4px);border-color:rgba(22,26,24,.2)}
.related-media{overflow:hidden;background:var(--dark)}
.related-media img{width:100%;aspect-ratio:16/10;object-fit:cover;transition:transform .5s ease}
.related-card:hover .related-media img{transform:scale(1.04)}
.related-content{padding:24px;display:flex;flex-direction:column;gap:14px;flex:1}
.related-label{font-size:12px;font-weight:700;letter-spacing:.1em;color:var(--muted)}
.related-content h3{font-size:18px;line-height:1.5;font-weight:800;color:var(--ink);letter-spacing:-.01em}
.related-content p{font-size:14px;color:var(--muted);line-height:1.75;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.related-link{margin-top:auto;display:inline-flex;align-items:center;gap:8px;font-size:14px;font-weight:800;color:var(--dark)}
.related-link i{transition:transform var(--ease);color:var(--accent-deep)}
.related-card:hover .related-link i{transform:translateX(4px)}

/* CTA band */
.cta-band{background:var(--dark);color:var(--dark-text);padding:clamp(60px,8vw,100px) 0;overflow:hidden}
.cta-inner{display:flex;align-items:center;justify-content:space-between;gap:44px}
.cta-copy{max-width:680px}
.cta-copy .eyebrow{display:inline-flex;align-items:center;gap:8px;height:28px;padding:0 14px;border:1px solid rgba(215,241,113,.35);border-radius:999px;color:var(--accent);font-size:12px;font-weight:800;letter-spacing:.1em;margin-bottom:20px}
.cta-copy h2{font-size:clamp(2rem,4vw,3.8rem);font-weight:900;letter-spacing:-.03em;line-height:1.1;margin-bottom:18px}
.cta-copy p{color:rgba(245,244,239,.68);font-size:16px;line-height:1.8}
.cta-actions{display:flex;align-items:center;flex-wrap:wrap;gap:16px;flex-shrink:0}
.cta-actions .btn-solid,.cta-actions .btn-outline{display:inline-flex;align-items:center;gap:8px;height:52px;padding:0 32px;border-radius:999px;font-size:15px;font-weight:800;transition:all var(--ease);white-space:nowrap}
.btn-solid{background:var(--accent);color:var(--dark)}
.btn-solid i{font-size:12px}
.btn-solid:hover{background:#E6FD9A;transform:translateY(-2px)}
.btn-outline{border:1px solid rgba(245,244,239,.4);color:var(--dark-text)}
.btn-outline:hover{border-color:var(--accent);color:var(--accent);transform:translateY(-2px)}

/* Not found */
.not-found-wrap{max-width:900px;margin:60px auto 0;padding:70px 30px;background:#fff;border-radius:20px;border:1px solid var(--line);box-shadow:var(--shadow-sm);text-align:center}
.not-found-icon{width:72px;height:72px;border-radius:50%;background:var(--page-bg);display:inline-flex;align-items:center;justify-content:center;font-size:28px;color:var(--muted);margin-bottom:22px}
.not-found-wrap h1{font-size:clamp(1.7rem,3vw,2.6rem);font-weight:900;letter-spacing:-.02em;margin-bottom:12px}
.not-found-wrap p{color:var(--muted);font-size:15px;max-width:460px;margin:0 auto 28px}
.not-found-wrap .btn-back{display:inline-flex;align-items:center;gap:8px;height:46px;padding:0 28px;border-radius:999px;background:var(--dark);color:#fff;font-size:14px;font-weight:700;transition:all var(--ease)}
.not-found-wrap .btn-back:hover{background:var(--ink);transform:translateY(-2px)}

/* Footer */
.site-footer{background:var(--dark);color:#B9C3BD;padding:clamp(58px,7vw,84px) 0 0;margin-top:40px}
.footer-main{padding-bottom:42px}
.footer-brand{display:flex;flex-direction:row;align-items:center;gap:12px;margin-bottom:22px;width:100%}
.footer-brand .brand-mark{width:40px;height:40px;flex:0 0 40px}
.footer-brand .brand-mark svg{width:22px;height:22px}
.footer-brand .brand-text{font-size:24px;font-weight:900;color:#FFFFFF;letter-spacing:-.02em}
.footer-main p{font-size:15px;line-height:1.9;color:#9DA9A2;margin:0}
.footer-col h4{font-size:13px;color:#fff;font-weight:800;letter-spacing:.14em;margin:0 0 18px;text-transform:uppercase}
.footer-col ul{list-style:none;margin:0;padding:0}
.footer-col li{margin-bottom:11px}
.footer-col a{font-size:15px;color:#9DA9A2;transition:all var(--ease);line-height:1.5}
.footer-col a:hover{color:var(--accent);padding-left:4px}
.footer-bottom{display:flex;align-items:center;justify-content:space-between;gap:12px;border-top:1px solid rgba(255,255,255,.1);padding:22px 0 26px;color:#77827A;font-size:13px;flex-wrap:wrap}
.footer-bottom span{line-height:1.6}

/* Responsive */
@media screen and (max-width: 900px){
  .related-header{flex-direction:column;align-items:flex-start;gap:12px}
  .cta-inner{flex-direction:column;align-items:flex-start;gap:30px}
}
@media screen and (max-width: 768px){
  .topbar-inner{flex-wrap:nowrap}
  .menu-toggle{display:inline-flex}
  .nav-channels-row{display:none;border-top:1px solid var(--line)}
  .site-header.mobile-open .nav-channels-row{display:block}
  .nav-wrap-inner{flex-direction:column;align-items:flex-start;padding:10px 0 16px;gap:12px}
  .nav-channels{width:100%;display:grid;grid-template-columns:repeat(2,1fr);gap:2px}
  .nav-channels a{
    height:44px;padding:0 12px;border-radius:10px;justify-content:center;
  }
  .nav-channels a::after{display:none}
  .nav-channels a.active{background:var(--accent);color:var(--dark)}
  .nav-channels a:first-child{padding-left:12px}
  .hot-links{padding-left:2px;width:100%;overflow-x:auto}
  .hot-links::-webkit-scrollbar{display:none}
  .article-header{margin-top:30px}
  .article-header h1{font-size:clamp(1.9rem,8vw,3rem)}
  .article-cover-img img{aspect-ratio:16/10}
  .article-card{padding:28px 20px;margin-top:28px}
  .article-body{font-size:17px}
  .post-link-nav{grid-template-columns:1fr;gap:12px;padding:0}
  .post-link-card{min-height:auto}
  .article-cover{padding:0}
  .product-links{grid-template-columns:1fr!important}
  .footer-main>.cell{margin-bottom:30px}
  .footer-bottom{flex-direction:column;text-align:center}
}
@media screen and (max-width: 640px){
  .header-cta{padding:0 15px;font-size:12px}
  .brand-text{font-size:18px}
  .header-cta span{display:none}
  .breadcrumb{padding-top:24px}
}
@media (prefers-reduced-motion: reduce){
  *,*::before,*::after{animation-duration:.01ms!important;transition-duration:.01ms!important;scroll-behavior:auto!important}
}

/* roulang page: category2 */
:root {
  --paper: #F5F4EF;
  --alt: #ECEAE3;
  --surface: #FFFFFF;
  --ink: #161A18;
  --muted: #6C746F;
  --line: rgba(22, 26, 24, 0.12);
  --line-strong: rgba(22, 26, 24, 0.2);
  --accent: #D7F171;
  --accent-strong: #BEE34A;
  --dark: #121916;
  --dark-2: #1D2621;
  --paper-deep: #E8E5DC;
  --warn: #B4573D;
  --radius: 18px;
  --radius-sm: 10px;
  --shadow: 0 12px 30px rgba(0, 0, 0, 0.06);
  --shadow-sm: 0 5px 14px rgba(0, 0, 0, 0.05);
  --font-sans: "Inter", "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", "Noto Sans CJK SC", "Source Han Sans SC", sans-serif;
  --ease: cubic-bezier(.2, .7, .3, 1);
}

*,
*::before,
*::after {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  background: var(--paper);
  color: var(--ink);
  font-family: var(--font-sans);
  font-size: 16px;
  line-height: 1.7;
  text-rendering: optimizeLegibility;
  -webkit-font-smoothing: antialiased;
}

img {
  display: block;
  max-width: 100%;
  height: auto;
}

h1,
h2,
h3,
h4,
p,
ul,
ol,
figure {
  margin-top: 0;
}

a {
  color: inherit;
  text-decoration: none;
}

button {
  font-family: inherit;
}

:focus-visible {
  outline: 3px solid var(--accent);
  outline-offset: 3px;
}

::selection {
  background: var(--accent);
  color: var(--dark);
}

.skip-link {
  position: absolute;
  top: -100px;
  left: 20px;
  z-index: 999;
  border-radius: 999px;
  background: var(--dark);
  color: white;
  padding: 10px 18px;
}

.skip-link:focus {
  top: 12px;
}

a,
button {
  transition: all .16s ease;
}

.grid-container {
  max-width: 1200px;
}

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: .45rem;
  padding: 14px 30px;
  border: 1px solid transparent;
  border-radius: 999px;
  font-weight: 600;
  font-size: .95rem;
  line-height: 1.2;
  cursor: pointer;
  text-align: center;
  white-space: nowrap;
  background: transparent;
}

.btn-primary {
  background: var(--accent);
  color: #0F1411;
  box-shadow: 0 8px 22px rgba(215, 241, 113, .18);
}

.btn-primary:hover {
  background: #E6FA8D;
  color: var(--dark);
  transform: translateY(-2px);
}

.btn-primary:active {
  transform: translateY(0);
  background: var(--accent-strong);
}

.btn-outline {
  border-color: var(--ink);
  color: var(--ink);
  background: transparent;
}

.btn-outline:hover {
  border-color: var(--ink);
  background: var(--alt);
}

.btn-outline-light {
  border-color: rgba(255, 255, 255, .6);
  color: white;
  background: transparent;
}

.btn-outline-light:hover {
  border-color: var(--accent);
  color: var(--accent);
  background: transparent;
}

.text-accent {
  color: var(--accent);
}

/* ------------------------------------------------------------------ */
/* Header                                                              */
/* ------------------------------------------------------------------ */
.site-header {
  position: sticky;
  top: 0;
  z-index: 100;
  background: #FFFFFF;
  box-shadow: 0 1px 0 rgba(22, 26, 24, .08);
  transition: box-shadow .25s ease;
}

.site-header.is-stuck {
  box-shadow: 0 8px 26px rgba(22, 26, 24, .07);
}

.header-bar {
  background: #fff;
}

.bar-inner {
  min-height: 56px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 20px;
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  flex: 0 0 auto;
}

.brand-mark {
  width: 36px;
  height: 36px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  border-radius: 12px;
  background: var(--dark);
  color: var(--accent);
  padding: 7px;
}

.brand-mark svg {
  width: 100%;
  height: 100%;
  fill: currentColor;
}

.brand-text {
  font-size: 1.25rem;
  font-weight: 800;
  letter-spacing: -0.02em;
  color: var(--ink);
  line-height: 1.2;
}

.header-tools {
  display: flex;
  align-items: center;
  gap: 10px;
}

.search-trigger {
  width: 38px;
  height: 38px;
  border: 0;
  border-radius: 999px;
  background: var(--alt);
  display: inline-flex;
  align-items: center;
  justify-content: center;
  color: var(--ink);
  cursor: pointer;
}

.search-trigger:hover {
  background: #E1DDD3;
  color: var(--ink);
}

.search-trigger svg {
  width: 17px;
  height: 17px;
  fill: none;
  stroke: currentColor;
  stroke-width: 2;
  stroke-linecap: round;
}

.btn-header-cta {
  padding: 10px 22px;
  font-size: .9rem;
}

.menu-toggle {
  width: 38px;
  height: 38px;
  border: 1px solid var(--line);
  border-radius: 999px;
  display: none;
  align-items: center;
  justify-content: center;
  background: #fff;
  color: var(--ink);
  cursor: pointer;
}

.menu-toggle svg {
  width: 18px;
  height: 18px;
  stroke: currentColor;
  stroke-width: 2;
  stroke-linecap: round;
}

.channelbar {
  background: var(--dark);
}

.nav-inner {
  min-height: 42px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
}

.nav-channels {
  display: flex;
  align-items: center;
  gap: 2px;
  margin: 0;
  padding: 0;
  list-style: none;
}

.nav-channels a {
  position: relative;
  display: inline-flex;
  align-items: center;
  padding: 0 15px;
  height: 42px;
  font-size: .93rem;
  color: rgba(255, 255, 255, .68);
  letter-spacing: .01em;
}

.nav-channels a:hover {
  color: #fff;
  background: rgba(255, 255, 255, .06);
}

.nav-channels a.active {
  color: #fff;
  font-weight: 600;
}

.nav-channels a.active::after {
  content: "";
  position: absolute;
  left: 14px;
  right: 14px;
  bottom: 0;
  height: 2px;
  background: var(--accent);
  border-radius: 9px;
}

.nav-hot {
  display: flex;
  align-items: center;
  gap: 7px;
  font-size: .8rem;
  color: rgba(255, 255, 255, .5);
  flex: 0 0 auto;
}

.nav-hot span {
  white-space: nowrap;
}

.nav-hot a {
  color: rgba(215, 241, 113, .85);
  padding: 3px 0;
  border-bottom: 1px solid transparent;
}

.nav-hot a:hover {
  color: white;
  border-bottom-color: var(--accent);
}

.nav-hot-divider {
  width: 1px;
  height: 12px;
  background: rgba(255, 255, 255, .2);
}

/* ------------------------------------------------------------------ */
/* Category hero                                                       */
/* ------------------------------------------------------------------ */
.category-hero {
  position: relative;
  color: white;
  padding: clamp(56px, 8vw, 96px) 0 68px;
  background-color: var(--dark);
  background-size: cover;
  background-position: center 30%;
  overflow: hidden;
}

.category-hero::before {
  content: "";
  position: absolute;
  inset: 0;
  background: linear-gradient(100deg, rgba(11, 16, 14, .93) 0%, rgba(18, 25, 22, .82) 44%, rgba(18, 25, 22, .38) 100%);
}

.category-hero .grid-container {
  position: relative;
  z-index: 1;
}

.breadcrumb {
  display: flex;
  align-items: center;
  flex-wrap: wrap;
  gap: 8px;
  font-size: .85rem;
  color: rgba(255, 255, 255, .55);
  margin-bottom: 26px;
}

.breadcrumb a:hover {
  color: var(--accent);
}

.breadcrumb i {
  font-style: normal;
  opacity: .5;
}

.hero-kicker {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-size: .78rem;
  font-weight: 600;
  letter-spacing: .14em;
  text-transform: uppercase;
  color: var(--accent);
  margin-bottom: 18px;
}

.hero-kicker::before {
  content: "";
  width: 28px;
  height: 2px;
  background: var(--accent);
}

.category-hero h1 {
  max-width: 980px;
  margin: 0 0 18px;
  font-size: clamp(2.5rem, 5.8vw, 4.2rem);
  line-height: 1.12;
  font-weight: 800;
  letter-spacing: -0.035em;
  color: #fff;
}

.category-hero .hero-lead {
  max-width: 720px;
  font-size: clamp(1.02rem, 1.6vw, 1.18rem);
  color: rgba(255, 255, 255, .78);
  line-height: 1.9;
  margin-bottom: 28px;
}

.hero-meta-row {
  display: flex;
  align-items: center;
  flex-wrap: wrap;
  gap: 10px;
}

.hero-chip {
  display: inline-flex;
  align-items: center;
  gap: 7px;
  padding: 6px 12px;
  border: 1px solid rgba(255, 255, 255, .22);
  border-radius: 999px;
  background: rgba(255, 255, 255, .07);
  color: rgba(245, 244, 239, .92);
  font-size: .82rem;
}

.hero-chip b {
  color: var(--accent);
  font-weight: 600;
}

/* ------------------------------------------------------------------ */
/* guide layout                                                        */
/* ------------------------------------------------------------------ */
.guide-body {
  padding: clamp(52px, 7vw, 92px) 0 clamp(56px, 7vw, 96px);
  background: var(--paper);
}

.page-layout {
  row-gap: 34px;
}

.toc-aside {
  margin-bottom: 10px;
}

.toc-inner {
  position: sticky;
  top: 122px;
  border: 1px solid var(--line);
  background: #fff;
  border-radius: var(--radius);
  padding: 22px 20px;
  box-shadow: var(--shadow-sm);
}

.toc-title {
  font-size: .95rem;
  margin: 0 0 14px;
  padding-bottom: 12px;
  border-bottom: 1px solid var(--line);
  font-weight: 700;
  letter-spacing: .02em;
}

.toc-list {
  margin: 0;
  padding: 0;
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 2px;
}

.toc-list a {
  display: block;
  padding: 7px 10px 7px 15px;
  border-left: 2px solid var(--alt);
  font-size: .86rem;
  color: var(--muted);
  line-height: 1.45;
  border-radius: 0 6px 6px 0;
}

.toc-list a:hover {
  color: var(--ink);
  border-left-color: var(--accent-strong);
  background: rgba(215, 241, 113, .13);
}

.toc-list a.active {
  color: var(--ink);
  border-left-color: var(--dark);
  background: rgba(22, 26, 24, .04);
  font-weight: 600;
}

.guide-note {
  margin-top: 18px;
  padding: 12px 13px;
  border-radius: 10px;
  background: #F3F1E9;
  font-size: .78rem;
  color: var(--muted);
}

.guide-main {
  background: #fff;
  border: 1px solid var(--line);
  border-radius: 20px;
  padding: clamp(28px, 4vw, 46px);
  box-shadow: var(--shadow-sm);
}

.guide-section {
  padding-bottom: clamp(34px, 5vw, 52px);
  border-bottom: 1px solid var(--line);
  margin-bottom: clamp(28px, 4vw, 44px);
}

.guide-section:last-child {
  padding-bottom: 0;
  margin-bottom: 0;
  border-bottom: 0;
}

.section-head {
  display: flex;
  align-items: flex-start;
  gap: 14px;
  margin-bottom: 22px;
}

.section-num {
  background: var(--accent);
  color: var(--dark);
  border-radius: 7px;
  width: 30px;
  height: 30px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  font-size: .8rem;
  font-weight: 800;
  letter-spacing: .02em;
  flex: 0 0 30px;
  transform: translateY(3px);
}

.section-head h2 {
  margin: 0;
  font-size: 1.65rem;
  font-weight: 750;
  letter-spacing: -0.02em;
  line-height: 1.3;
}

.sec-sub {
  margin: -6px 0 20px 44px;
  color: var(--muted);
  font-size: .96rem;
}

.guide-section p {
  color: #39423D;
  margin-bottom: 1.5em;
}

.document-lead {
  font-size: 1.02rem;
  line-height: 2;
  color: #3E4842;
}

/* ------------------------------------------------------------------ */
/* feature row with image                                              */
/* ------------------------------------------------------------------ */
.feature-row {
  margin-top: 12px;
}

.feature-photo {
  position: relative;
  overflow: hidden;
  border-radius: 18px;
  border: 1px solid var(--line);
  box-shadow: var(--shadow);
}

.feature-photo img {
  width: 100%;
  aspect-ratio: 4 / 3.1;
  object-fit: cover;
}

.feature-photo figcaption {
  position: absolute;
  left: 0;
  right: 0;
  bottom: 0;
  padding: 28px 20px 14px;
  font-size: .8rem;
  color: #fff;
  background: linear-gradient(transparent, rgba(0, 0, 0, .7));
}

/* check list */
.check-list {
  list-style: none;
  margin: 16px 0 0;
  padding: 0;
  border-top: 1px solid var(--line);
}

.check-list li {
  display: flex;
  gap: 14px;
  align-items: flex-start;
  padding: 17px 4px;
  border-bottom: 1px solid var(--line);
}

.check-icon {
  width: 26px;
  height: 26px;
  border-radius: 99px;
  background: var(--accent);
  color: var(--dark);
  display: inline-flex;
  align-items: center;
  justify-content: center;
  font-size: .8rem;
  font-weight: 800;
  flex: 0 0 26px;
  margin-top: 3px;
}

.check-list h3 {
  font-size: 1.04rem;
  margin-bottom: 3px;
  font-weight: 700;
}

.check-list p {
  margin: 0;
  font-size: .92rem;
  line-height: 1.8;
  color: var(--muted);
}

/* ------------------------------------------------------------------ */
/* compare panels                                                      */
/* ------------------------------------------------------------------ */
.compare-grid {
  row-gap: 18px;
  margin-top: 16px;
}

.compare-panel {
  height: 100%;
  border-radius: 16px;
  padding: 24px;
  border: 1px solid var(--line);
  background: #FBFBF9;
}

.compare-panel.safe-panel {
  border-left: 3px solid #86A95E;
}

.compare-panel.warn-panel {
  border-left: 3px solid var(--warn);
  background: #FFF8F5;
}

.panel-label {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-weight: 700;
  font-size: .92rem;
  margin-bottom: 12px;
  padding: 5px 11px;
  border-radius: 999px;
  background: rgba(22, 26, 24, .06);
}

.warn-panel .panel-label {
  background: rgba(180, 87, 61, .1);
  color: var(--warn);
}

.safe-panel .panel-label {
  background: rgba(109, 148, 63, .12);
  color: #3F5C1E;
}

.compare-list {
  list-style: none;
  margin: 0;
  padding: 0;
  display: flex;
  flex-direction: column;
  gap: 14px;
}

.compare-list li {
  display: flex;
  gap: 10px;
  align-items: flex-start;
  font-size: .92rem;
  color: #464F49;
  line-height: 1.75;
}

.compare-tick {
  color: #4C7129;
  font-size: .95rem;
  flex: 0 0 auto;
  line-height: 1.5;
}

.compare-cross {
  color: var(--warn);
  font-size: .93rem;
  flex: 0 0 auto;
  line-height: 1.5;
}

/* ------------------------------------------------------------------ */
/* protect items                                                       */
/* ------------------------------------------------------------------ */
.protect-grid {
  row-gap: 16px;
  margin-top: 8px;
}

.protect-item {
  border: 1px solid var(--line);
  border-radius: 14px;
  padding: 20px;
  height: 100%;
  background: #FEFEFC;
  position: relative;
  transition: all .18s ease;
}

.protect-item:hover {
  border-color: var(--line-strong);
  transform: translateY(-2px);
  box-shadow: var(--shadow-sm);
}

.protect-index {
  display: block;
  font-size: .76rem;
  font-weight: 700;
  color: #97AB77;
  letter-spacing: .1em;
  margin-bottom: 10px;
}

.protect-item h3 {
  font-size: 1.05rem;
  margin-bottom: 7px;
}

.protect-item p {
  margin: 0;
  color: var(--muted);
  font-size: .9rem;
  line-height: 1.8;
}

/* alert */
.alert-banner {
  display: flex;
  gap: 14px;
  margin-top: 24px;
  padding: 15px 18px;
  border-radius: 13px;
  background: #FDF6EC;
  border: 1px solid #EDD9C7;
}

.alert-icon {
  width: 27px;
  height: 27px;
  border-radius: 99px;
  background: var(--warn);
  color: white;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  font-weight: 800;
  flex: 0 0 27px;
  font-size: .8rem;
}

.alert-banner strong {
  display: block;
  margin-bottom: 3px;
  font-size: .94rem;
}

.alert-banner p {
  margin: 0;
  font-size: .9rem;
  color: #5F4C42;
}

/* prepay list */
.prepay-list {
  list-style: none;
  margin: 16px 0 0;
  padding: 0;
  border-top: 1px solid var(--line);
}

.prepay-item {
  display: flex;
  gap: 16px;
  padding: 20px 2px;
  border-bottom: 1px solid var(--line);
  align-items: flex-start;
  transition: background .18s ease;
}

.prepay-item:hover {
  background: #FAFAF6;
}

.prepay-index {
  font-size: .9rem;
  font-weight: 800;
  background: var(--alt);
  color: var(--ink);
  width: 32px;
  height: 32px;
  border-radius: 10px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  flex: 0 0 32px;
  margin-top: 2px;
}

.prepay-body strong {
  display: block;
  font-size: 1rem;
  margin-bottom: 4px;
}

.prepay-body p {
  margin: 0;
  font-size: .92rem;
  color: var(--muted);
}

/* process steps for unusual handling */
.risk-step {
  border: 1px solid var(--line);
  border-radius: 13px;
  padding: 17px 18px;
  margin-bottom: 12px;
  display: flex;
  align-items: flex-start;
  gap: 14px;
  background: #fff;
}

.risk-step .step-badge {
  width: 28px;
  height: 28px;
  border-radius: 999px;
  background: var(--dark);
  color: var(--accent);
  font-size: .78rem;
  font-weight: 700;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  flex: 0 0 28px;
  margin-top: 2px;
}

.risk-step h3 {
  margin-bottom: 4px;
  font-size: 1rem;
}

.risk-step p {
  margin: 0;
  color: var(--muted);
  font-size: .92rem;
}

/* ------------------------------------------------------------------ */
/* faq                                                                */
/* ------------------------------------------------------------------ */
.faq-wrap {
  margin-top: 10px;
}

.faq-item {
  border-bottom: 1px solid var(--line);
}

.faq-item:first-child {
  border-top: 1px solid var(--line);
}

.faq-q {
  width: 100%;
  display: flex;
  justify-content: space-between;
  gap: 12px;
  align-items: center;
  border: 0;
  background: transparent;
  padding: 18px 4px;
  font-size: 1.06rem;
  text-align: left;
  color: var(--ink);
  cursor: pointer;
  font-weight: 600;
  line-height: 1.5;
}

.faq-q:hover {
  color: #30442B;
}

.faq-icon {
  font-size: 1.4rem;
  width: 30px;
  height: 30px;
  border-radius: 50%;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  background: var(--alt);
  color: var(--ink);
  font-weight: 400;
  flex: 0 0 30px;
  transition: transform .2s ease, background .2s ease;
}

.faq-item.open .faq-icon {
  transform: rotate(45deg);
  background: var(--accent);
}

.faq-a {
  display: grid;
  grid-template-rows: 0fr;
  transition: grid-template-rows .25s var(--ease);
}

.faq-a-inner {
  min-height: 0;
  overflow: hidden;
}

.faq-item.open .faq-a {
  grid-template-rows: 1fr;
}

.faq-a-inner p {
  padding: 0 42px 22px 4px;
  margin: 0;
  color: var(--muted);
  font-size: .97rem;
  line-height: 1.85;
}

/* ------------------------------------------------------------------ */
/* CTA                                                                 */
/* ------------------------------------------------------------------ */
.cta-dark {
  background: var(--dark);
  color: #fff;
  padding: clamp(54px, 8vw, 92px) 0;
  position: relative;
  overflow: hidden;
}

.cta-dark::after {
  content: "";
  position: absolute;
  right: -80px;
  bottom: -160px;
  width: 420px;
  height: 420px;
  border-radius: 50%;
  background: radial-gradient(circle, rgba(215, 241, 113, .11), transparent 68%);
  pointer-events: none;
}

.cta-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 36px;
  position: relative;
  z-index: 1;
}

.cta-text {
  max-width: 650px;
}

.cta-text .eyebrow {
  color: var(--accent);
  font-size: .82rem;
  font-weight: 700;
  letter-spacing: .18em;
  text-transform: uppercase;
  margin-bottom: 12px;
}

.cta-text h2 {
  font-size: clamp(2.2rem, 4vw, 3.2rem);
  line-height: 1.18;
  letter-spacing: -0.02em;
  margin: 0 0 18px;
}

.cta-text p {
  color: rgba(255, 255, 255, .7);
  font-size: 1.02rem;
  margin: 0;
}

.cta-actions {
  display: flex;
  flex-direction: column;
  gap: 14px;
  align-items: flex-start;
  flex: 0 0 auto;
}

/* ------------------------------------------------------------------ */
/* footer                                                              */
/* ------------------------------------------------------------------ */
.site-footer {
  background: #0F1411;
  color: rgba(255, 255, 255, .62);
  padding-top: clamp(40px, 6vw, 70px);
}

.site-footer .grid-container {
  border-bottom: 1px solid rgba(255, 255, 255, .12);
  padding-bottom: clamp(26px, 4vw, 44px);
}

.footer-main {
  row-gap: 30px;
  padding-bottom: 14px;
}

.footer-brand {
  display: flex;
  align-items: center;
  gap: 10px;
  margin-bottom: 16px;
}

.footer-brand .brand-mark {
  background: var(--accent);
  color: var(--dark);
}

.footer-brand .brand-text {
  color: #fff;
}

.footer-brand + p,
.footer-col > p {
  color: rgba(255, 255, 255, .52);
  font-size: .92rem;
  line-height: 1.85;
  margin-left: 0;
}

.footer-col h4 {
  color: #fff;
  font-size: 1rem;
  margin-bottom: 15px;
  font-weight: 700;
}

.footer-col ul {
  list-style: none;
  margin: 0;
  padding: 0;
  display: flex;
  flex-direction: column;
  gap: 9px;
}

.footer-col a {
  color: rgba(255, 255, 255, .58);
  font-size: .93rem;
}

.footer-col a:hover {
  color: var(--accent);
}

.footer-bottom {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 14px;
  color: rgba(255, 255, 255, .4);
  font-size: .84rem;
  padding: 18px 0;
}

.footer-bottom a {
  color: rgba(255, 255, 255, .5);
}

/* ------------------------------------------------------------------ */
/* reveal animation                                                    */
/* ------------------------------------------------------------------ */
.reveal {
  opacity: 0;
  transform: translateY(16px);
  transition: opacity .5s ease, transform .5s ease;
}

.reveal.is-visible {
  opacity: 1;
  transform: none;
}

/* ------------------------------------------------------------------ */
/* responsive                                                          */
/* ------------------------------------------------------------------ */
@media (max-width: 1023px) {
  .nav-hot {
    display: none;
  }

  .nav-inner {
    min-height: 42px;
  }

  .guide-main {
    padding: 26px;
  }

  .cta-inner {
    flex-direction: column;
    align-items: flex-start;
  }

  .cta-actions {
    flex-direction: row;
    flex-wrap: wrap;
  }

  .toc-aside .toc-inner {
    position: relative;
    top: 0;
  }

  .toc-list {
    flex-direction: row;
    flex-wrap: nowrap;
    overflow-x: auto;
    gap: 6px;
  }

  .toc-list a {
    border-left: 0;
    border-bottom: 2px solid transparent;
    border-radius: 6px;
    white-space: nowrap;
    padding: 6px 11px;
    background: #F1F0EA;
    color: var(--muted);
    font-size: .82rem;
  }

  .toc-list a:hover,
  .toc-list a.active {
    border-bottom-color: var(--accent-strong);
    background: #E9E6DC;
    color: var(--ink);
  }
}

@media (max-width: 767px) {
  .header-tools .btn-header-cta {
    padding: 8px 13px;
    font-size: .82rem;
  }

  .search-trigger {
    display: none;
  }

  .menu-toggle {
    display: inline-flex;
  }

  .channelbar {
    display: none;
    position: absolute;
    left: 0;
    right: 0;
    top: 56px;
    box-shadow: 0 18px 30px rgba(0, 0, 0, .18);
  }

  .site-header.open .channelbar {
    display: block;
  }

  .nav-inner {
    padding-top: 8px;
    padding-bottom: 8px;
  }

  .nav-channels {
    width: 100%;
    overflow-x: auto;
    flex-wrap: nowrap;
  }

  .nav-channels a {
    height: 38px;
    white-space: nowrap;
    flex: 0 0 auto;
  }

  .nav-channels a.active::after {
    left: 10px;
    right: 10px;
  }

  .brand-text {
    font-size: 1.1rem;
  }

  .brand-mark {
    width: 32px;
    height: 32px;
  }

  .category-hero {
    padding-top: 46px;
    padding-bottom: 46px;
  }

  .category-hero h1 {
    font-size: 2.1rem;
  }

  .guide-main {
    padding: 20px 17px;
    border-radius: 14px;
  }

  .section-head {
    flex-direction: column;
    gap: 4px;
  }

  .section-num {
    transform: none;
  }

  .sec-sub {
    margin-left: 0;
    margin-top: 0;
  }

  .section-head h2 {
    font-size: 1.35rem;
  }

  .compare-panel {
    padding: 20px;
  }

  .prepay-item {
    flex-direction: column;
  }

  .footer-bottom {
    flex-direction: column;
    text-align: center;
  }
}

@media (prefers-reduced-motion: reduce) {
  *,
  *::before,
  *::after {
    transition: none !important;
    animation: none !important;
    scroll-behavior: auto !important;
  }
}